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-   -   Running A Component Set Active Off of A Single Amp... (http://www.diyaudio.com/forums/car-audio/118528-running-component-set-active-off-single-amp.html)

HsOffRoad 2nd March 2008 06:31 AM

Running A Component Set Active Off of A Single Amp...
 
All,

I wanted to know if anyone can steer me in the direction of a single, 4 channel amplifier where two of the channels can be crossed over to run the midbass drivers of a component set, and the other two channels can be crossed over to run the tweeters. I know there are certain amps that support this, but I have found very few. The one that comes to mind is the Sinus Live Verstarker SLA-260.4. Is there any reason more companies don't do this? The only thing I can think of is not having separate gains for the mid and the tweet... but perhaps I'm missing something.

Thanks,

Hans

jol50 2nd March 2008 03:15 PM

A lot of them can do that, what they can't do is BP the mid and take the bass out too. I think I saw one I'll look.

Clipped 3rd March 2008 05:31 AM

if you can find an amp that has an adjustable subsonic filter that goes high enough it will work.

the only amp ive found that had a subsonic filter reaching into the 60 hz range was for subs, so thats kinda a moot point.

Resonant engineering 35.1 (aka Destijl engineering)

a preamp may work to cut the bass out.

jol50 3rd March 2008 02:15 PM

You can just use a 2way crossover on that amp, along with the one in amp you could BP. I have an amp that would do that high subsonic, I think it was a hifonics. Not found the one I saw, it was on some audio site and people there loved these amps for some reason.

shagone 3rd March 2008 08:22 PM

i have seen some alpine V12's that i think can do that. they had a switch to multiply the crossover frequency by 10 or by 1. otherwise a good outboard electronic crosover would probably be a better choice plus nowadays some higher end headunits have complex crossovers built in.

HsOffRoad 5th March 2008 02:29 AM

Thanks for the input guys,

After some searching, it looks like the JL Audio 450/4v2 can do everything I need. I agree that an external crossover and multiple amps would be the best way to go, however, space is at a serious premium in the car, and finding something that does the job of three pieces of hardware with one is very attractive at the moment...

Hans


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